Billfodl vs Cryptotag Zeus
Key differences
- Billfodl uses a tile-based system that's easy to adjust if you make a mistake, while Cryptotag Zeus requires manual hammering—any error is permanent.
- Billfodl is more affordable at $99, compared to Cryptotag Zeus at $129.
- Cryptotag Zeus offers higher fire resistance (up to 1667°C) than Billfodl (up to 1200°C), making it more durable in extreme conditions.
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Price
$99
$129 USD
Technical Specifications
Dimensions
100 x 60 x 6 mm
113x68x6 mm
Weight
170g
210g
Materials
316 marine-grade stainless steel
Aerospace grade Titanium
Box Includes
Billfodl steel wallet, Instruction manual
- Cryptotag Zeus (2 Aerospace grade Titanium plates)
- BIP39 conversion sheet
- center punch pen
Usage
Entry Method
Slide-in stainless steel tiles
Manual punching
Error Handling
Mistake-friendly → easy to swap tiles, no permanent damage
Permanent → once punched, errors are irreversible
Tools Required
Tool-free, no hammering required
Requires hammer & pre-marking pen (not included)
Reusability
Fully reusable (swap tiles anytime)
Single-use → punched letters are permanent
Durability
Fire Resistance
Up to 1,200°C (2,192°F)
Up to 1667 °C (3050 °F)
Water & Corrosion Resistance
Fully waterproof & corrosion resistant
Water, chlorine, acid, & corrosion resistant
Real World Proofs
Billfodl survived a real fire, here is a video of the guy whose house burned down.
Compatibility
Backup Types
BIP39 seed phrases
Only supports BIP39 seed phrases
Seed Compatibility
BIP39 (12, 18, 24-word phrases)
BIP39 (12, 18, 24-word phrases)
Wallet Compatibility
All wallets using BIP39
Trezor Safe 3, Safe 5, Model T, Model One
Security Features
Tamper Evidence
None included, can buy tamper-evident stickers separately
Company Details
Manufacturer
PrivacyPros
Cryptotag
Founded
2017
2017
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